Purification of industrial hydantoinase in one chromatographic step without affinity tag

Cheng Yang Huang, Yun Peng Chao, Yuh-Shyong Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Hydantoinase is used in industry as a biocatalyst for the production of optically pure D- or L-amino acids. Previously, homogeneous hydantoinase was obtained by multi-chromatographic purification procedures. Here, we reported a process that contained only a single chromatographic step to purify a recombinant hydantoinase to homogeneity. Hydantoinase from Agrobacterium radiobacter NRRL B11291 was expressed in Escherichia coli. The recombinant enzyme was purified following heat treatments, high concentration alcohol precipitation, and chelating Sephacel chromatography. The recombinant hydantoinase did not contain any affinity tags from the plasmid. This simplified procedure provided a convenient way to obtain hydantoinase in high yield (71%) and high purity. It should be very useful for further industrial application and for the study of the structure-function of hydantoinase.

Original languageAmerican English
Pages (from-to)134-139
Number of pages6
JournalProtein Expression and Purification
Issue number1
StatePublished - 1 Jul 2003

Fingerprint Dive into the research topics of 'Purification of industrial hydantoinase in one chromatographic step without affinity tag'. Together they form a unique fingerprint.

Cite this